TY  - BOOK
AU  - Sahu, Sudhansu Sekhar  .
TI  - Insights into special education: behaviour modification of mentally retarded children through differential reinforcement / 
SN  - 978-81-908815-5-5
U1  - T 
PY  - 2009///
CY  - New Delhi : 
PB  - Kunal Books , 
KW  - Special education- Disability children
ER  -